Can you look in your booking directory for any error log?

I noticed the fb_error.log.php is logging errors , the last submission added these:
Wed, 27 Apr 2022 16:06:08 +0000: Validation rules for a listbox lacks values array.
Wed, 27 Apr 2022 16:06:08 +0000: Missing pricer method: dropdown_
Wed, 27 Apr 2022 16:06:08 +0000: Failed to get config parameter: google
Wed, 27 Apr 2022 16:06:08 +0000: Failed to get config parameter: authorizenetsim
Wed, 27 Apr 2022 16:06:08 +0000: Failed to get config parameter: 2co
Wed, 27 Apr 2022 16:06:08 +0000: Couldn't open or read: booking.html
Wed, 27 Apr 2022 16:06:08 +0000: Failed to parse HTML form.
Wed, 27 Apr 2022 16:06:08 +0000: Couldn't open or read: booking.html

if it has any bearing.

Ok so added the html version of the booking form in the same folder as the php version and it seems to be working.

There must be a php ini setting that's different on your host. I know I went through something similar with another user but we resolved it be changing
Line 62 of the formpage.cls.php page from to .
If it works then I guess keep both versions of your form on your host. Very strange.
I just tested your form and it completed.

I'm guessing that it must have something to do with looking for booking.html, now it can see it it completes.
All good. Thanks for this. Dare I ask about the blocking form?

Here ya go.
https://ericrohloff.com/coffeecup/ccfor … -block.zip

OK got that installed and it comes up OK but times aren't showing in the drop down.

Can you share a link?

Yeah, so I can block a date but not a time on a particular date.
https://bookit.freesite.today/blocker/

Look on your host in the blocker directory for the error_log.
There's one, probably inside the includes directory.